The Raddy WT-1 thermometer is designed for glass surfaces like windows and greenhouses. Simply stick it outside and read the accurate temperature, max/min records, and trends from inside—no need to open windows. Featuring a clear transparent LCD with large digits and IP44 weather resistance, it withstands rain, snow, and sun. Easy to install with included adhesive pad, no tools needed. Powered by 1 AAA battery (included) for up to 1 year, with a low battery indicator to keep you informed. Ideal for window panes, wine cellars, patios, and sunrooms. Max/Min Temperature Display Easily track the highest and lowest temperatures of the day at a glance, helping you monitor fluctuations and manage your environment with confidence. Wide Temperature Range Accurately measures temperatures from -25℃ to +70℃ (-13℉ to +158℉), suitable for various climates and seasons, ensuring reliable readings all year round. IP44 Weather-Resistant Design Built with an IP44 rating to resist wind, rain, and splashes—perfect for indoor and outdoor use on glass and other transparent surfaces. Specifications： Temperature Range: -25℃ to +70℃ (-13℉ to +158℉) Resolution: 0.1℃ / 0.2℉ Measurement Interval: Every 60 seconds Max/Min Memory: Records 24-hour high and low temperatures Temperature Unit: °F or ℃ (Default: ℉; switchable in the battery compartment) Time Format: 12-hour / 24-hour (Default: 12-hour) Display Mode: Switch between Max/Min Temperature and Time (switchable in the battery compartment) Power Supply: 1× AAA battery per unit (included) AAA Battery Operating Range: -10℃ to 50℃ (14℉ to 122℉) Battery Life: Up to 1 year Water Resistance: IP44 QA: Q: Can I install this thermometer on a wall or wooden surface? A: No. The WT-1 is specifically designed for transparent surfaces like glass or acrylic. It must be viewed from the opposite side to read the temperature correctly. Q: How do I install it? A: Simply peel off the backing of the included adhesive pad and stick the unit onto a clean, transparent surface. No tools or drilling are needed. Q: Can it be used in cold weather? A: Yes, it operates reliably from -25℃ to +70℃ (-13℉ to 158℉). For temperatures below -10℃ (14℉), we recommend using lithium AAA batteries, as they perform better than alkaline batteries in extreme cold. What’s in the box? 2 x WT-1 Thermometers 2 x AAA Batteries 2 x Extra Adhesive Pads 1 x User Manual Note: Standard alkaline batteries may lose power and experience voltage drops in extreme cold (below -10℃ / 14℉), which can lead to device malfunctions. For reliable operation in low temperatures, we recommend using lithium AA batteries, which perform better in cold environments.
